Fovea centralis is a part of:

1. Sclera	2. Cornea
3. Retina	4. Choroid

The major refractive surface in the human eye is the:
1. Anterior surface of cornea
2. Posterior surface of cornea
3. Anterior surface of lens
4. Posterior surface of lens

When the ciliary muscles in the human eye contract:
1. the lens becomes more convex, generally improving the focus for closer objects
2. the lens becomes more convex, generally improving the focus for farther objects
3. the lens becomes more flat, generally improving the focus for closer objects
4. the lens becomes more flat, generally improving the focus for farther objects

The afferent neuron receives signal from a sensory organ and transmits the impulse to the CNS via:
1. Dorsal root of the spinal nerve
2. Ventral root of the spinal nerve
3. Cranial nerve
4. Intermediolateral horn of spinal cord grey mater

If potassium ions were the only factor causing resting membrane potential, the resting potential inside the fiber would be nearly equal to:
1. - 55 mV
2. - 70 mV
3. - 94 mV
4. + 61 mV

Olfactory epithelium extends directly into which of the following extensions of the brain’s limbic system?

Membranous labyrinth of the inner ear is surrounded by:

The neurotransmitter released by a motor neuron at the neuro-muscular junction is:
1. Acetylcholine
2. Adrenaline
3. GABA
4. Serotonin

The space between the cornea and the lens in human eye is filled with:

The ear ossicles transmit sound waves to: